Lenny at Ultimate, I have three of them, two eight inch T/A converters redone by him for 11secdart and the lockup one in my truck. ( lowered 60ft a tenth in the truck) My friend had a bad experience with a Coan trans in his Brand X car and their customer service was horrible regarding the matter. He built a sturdy wooden crate to ship the trans in , they returned it in a cardboard box hence the trans got damaged in shipping they would`t do anything. So Coan